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Stability analysis of thermo-bioconvection in suspensions of gravitactic microorganisms in a fluid layer

✍ Scribed by Z. Alloui; T.H. Nguyen; E. Bilgen

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 569 KB
Volume: 33
Category: Article
ISSN: 0735-1933
DOI: 10.1016/j.icheatmasstransfer.2006.08.012

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✦ Synopsis

In this paper, we investigate the effect of heating or cooling from below on the stability of a suspension of motile gravitactic microorganisms in a shallow fluid layer. The linear perturbation theory is used to obtain the stability diagram and the critical conditions for the onset of convection. It is found that the thermo-effects may either stabilize or destabilize the suspension, and decrease or increase the wavelength of the bioconvective pattern.

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